11212120222012 has 12 divisors (see below), whose sum is σ = 19621235273080. Its totient is φ = 5606053001136.

The previous prime is 11212120221983. The next prime is 11212120222013. The reversal of 11212120222012 is 21022202121211.

It is a super-3 number, since 3×11212120222012³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212120222013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3534814 + ... + 5909242.

Almost surely, 2^{11212120222012} is an apocalyptic number.

It is an amenable number.

11212120222012 is a deficient number, since it is larger than the sum of its proper divisors (8409115051068).

11212120222012 is a wasteful number, since it uses less digits than its factorization.

11212120222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554940 (or 3554938 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11212120222012 its reverse (21022202121211), we get a palindrome (32234322343223).

The spelling of 11212120222012 in words is "eleven trillion, two hundred twelve billion, one hundred twenty million, two hundred twenty-two thousand, twelve".